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Equity Loan Calculator

Home Equity Loan Calculator works out Home equity and Loan-to-value from Property value, Secured loan balance and Lender maximum combined LTV. The default figures on this page give monthly payment during the draw period of 483.62; change any entry and the result, the working and the sources update together.

Monthly payment during the draw period
483.62
HELOC and Home Equity Calculator
Home equity
200,000.00
Loan-to-value
55.5556 %
Combined LTV including the drawn line
66.6667 %
Maximum credit line
132,500.00
Credit still available
82,500.00
Monthly payment during the repayment period
483.62
Payment increase at the end of the draw period
0.00
Interest paid during the draw period
0.00
Interest paid during the repayment period
37,050.37
Total interest over the life of the line
37,050.37
Total of all payments
87,050.37
Total months to repay
180
Worked out from Home-Equity Arithmetic Calculator and 3 other sources.
The rate is held constant. A real HELOC rate moves with its index and margin.
An estimate only. A real HELOC carries a variable rate (index plus margin, subject to caps and a floor), lender minimum payments, and fees that are not modelled here. Confirm every figure against your lender's disclosures.

Your figures

Updates as you type
Formatting only. This does not change the calculation.
Appraised or estimated market value of the home.
Everything already secured on the property - the first mortgage plus any existing second.
The combined loan-to-value ceiling the lender will lend to. 80-90% is typical.
The amount you have borrowed, or plan to borrow, against the line.
The current rate on the line. HELOC rates vary; this is held constant for the projection.

How this is worked out

6 steps
  1. Home equity = 450000 - 250000 = 200000
  2. Loan-to-value = 100 x 250000 / 450000 = 55.5556%
  3. Credit line = 85% x 450000 - 250000 = 132500
  4. Level payment across 180 months = 483.62
  5. Repayment-period payment = P i / (1 - (1+i)^-n) on 50000 over 180 months = 483.62
  6. Total interest = 0 in the draw period + 37050.37 in repayment = 37050.37

Its 5 worked examples are re-run on every release, last on 15 September 2026. What changed

Sources and references

4 sources
Home-Equity Arithmetic Calculator
Frozen formula: equity = value - balance; LTV = 100 x balance / value (not shown when the value is zero).
CFPB - What you should know about home equity lines of credit (HELOC booklet)
Describes the draw period (often interest-only) followed by a repayment period in which the balance amortises.
12 CFR 1026.40 (Regulation Z) - Requirements for home equity plans
Governs HELOC disclosure of the draw period, repayment period, variable-rate index and margin, and payment terms.
Standard annuity-immediate payment formula, PMT = P i / (1 - (1+i)^-n)
Used for the repayment-period payment; equivalent to the Excel PMT function.

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Save it, change one figure, then compare the two

The calculation stays free. Save this scenario, adjust one assumption, save that too, and put them side by side to see exactly what the change costs you. A free account keeps 5 scenarios and 2 comparisons; Personal makes both unlimited and adds exports and private links. Nothing is saved unless you press Save.

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What the Home Equity Loan Calculator calculates

Computes home equity and loan-to-value, sizes the credit line a lender can extend against the property, and prices the interest-only draw-period payment and the amortising repayment-period payment of a home equity line of credit.

How to use this Home Equity Loan Calculator

Enter Property value, Secured loan balance, Lender maximum combined LTV and Balance drawn on the line. Home equity updates as you type. Change one figure at a time to see what drives the result.

How the result is worked out

Open “How this is worked out” beside the result for the step-by-step calculation behind Home equity, Loan-to-value and Combined LTV including the drawn line.

The method follows Home-Equity Arithmetic Calculator, CFPB - What you should know about home equity lines of credit (HELOC booklet), 12 CFR 1026.40 (Regulation Z) - Requirements for home equity plans and Standard annuity-immediate payment formula, PMT = P i / (1 - (1+i)^-n).

What you can compare

Change one input at a time to see how it affects Home equity, Loan-to-value and Combined LTV including the drawn line. The inputs you can vary are Property value, Secured loan balance, Lender maximum combined LTV, Balance drawn on the line, Annual interest rate and Repayment period.

Understanding Home equity, Loan-to-value and Combined LTV including the drawn line

An estimate only. A real HELOC carries a variable rate (index plus margin, subject to caps and a floor), lender minimum payments, and fees that are not modelled here. Confirm every figure against your lender's disclosures.

Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.

Embed this calculator on your website

Copy this code into any page. The calculator appears with the figures currently entered, sizes itself to fit, and a small credit line links back here. Free, no account, no ads inside it, no tracking of your readers. Set your own figures and fixed fields; Personal removes the credit line, sets your colour and shows you which sites use it.

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Frequently asked questions

How much would a $100,000 home equity loan cost me per month?

On the figures this page opens with — property value 100,000 and secured loan balance 80,000 — the monthly payment during the draw period is 483.62. No single number fits everyone: change any figure above and the answer updates as you type, with each step of the arithmetic beside it.

How much a month is a $50,000 home equity loan?

It needs Property value, Secured loan balance, Lender maximum combined LTV, Balance drawn on the line, Annual interest rate and Repayment period. Nothing else is required, and the figures stay in your browser.

How much will I pay monthly for a $10,000 home equity loan?

The result gives Home equity, Loan-to-value, Combined LTV including the drawn line, Maximum credit line, Credit still available and Monthly payment during the draw period, each labelled with its unit so the figure can be read on its own.

How much equity can I get on a $40,000 home equity loan?

The page opens with worked default figures: monthly payment during the draw period of 483.62. Replace them with your own and every figure updates as you type.

What is the cheapest way to borrow against home equity?

The method comes from Home-Equity Arithmetic Calculator, CFPB - What you should know about home equity lines of credit (HELOC booklet) and 12 CFR 1026.40 (Regulation Z) - Requirements for home equity plans, listed in full under Sources so the figures can be checked against the original.

What information do I need for the Home Equity Loan Calculator?

You need Property value, Secured loan balance, Lender maximum combined LTV, Balance drawn on the line, Annual interest rate and Repayment period. The page opens with default figures that give monthly payment during the draw period of 483.62, so you can see the scale before entering your own.

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